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The RATZ Project: Root Area and Transition Zone (jr. nr. 64015-0062)
A three-year demonstration project started in January 2016 with a total budget of DKK 31.3, where 50% is supported by EUDP. The aim is to demonstrate and develop a retrofit solution, the Floor™ (a Bladena patent), for avoiding crack development due to edgewise loading of the blade. The project address a serious problem seen in the field, which pose an extensive operation and maintenance cost for the wind turbine owners. The RATZ project was supported by the Energy Technology Development and Demonstration Program (EUDP), which is administered by the Danish Energy Agency. |
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Floor™The Floor™ configuration makes it possible to transfer the edgewise loads (caused by gravity) smoothly to the root section and further into the hub. The Floor™ can be seen as a horisontal shearweb and takes shear forces from the trailing edge and transfer them into the hub through the shearweb. A flat panel in this location in the blade can carry a higher degree of in-plane shear forces without a resulting “breathing/pumping” behavior.
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Related projects
CORTIR - (Cost and Risk Tool for Interim and preventive Repair)
The project aims to cope with the various challenges of the appropriate maintenance strategies. A Cost and Reliability Tool (CAR Tool) will be developed. The vision of this project is to make the decision-making process regarding maintenance decisions easier and to support the entire value chain on how to minimize risk, operation and maintenance cost. |
LEX
The LEX project is a 3-year demonstration project started in July 2013 with a total budget of €4m whereof €2m are supported by the EUDP-programme. The aim of the project is to develop and demonstrate cost effective solutions for mitigating leading edge damages on blades for both existing and future wind turbines. |